Fix --gtest_output=xml: support.

run_test_cases.py

 #!/usr/bin/env python
 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """Runs each test cases as a single shard, single process execution.
 
 Similar to sharding_supervisor.py but finer grained. It runs each test case
 individually instead of running per shard. Runs multiple instances in parallel.
 """
@@ skipping 748 matching lines @@
   else:
     # If 10% of test cases fail, just too bad.
     decider = RunSome(len(test_cases), retries, 2, 0.1, max_failures)
 
   tempdir = None
   try:
     if gtest_output:
       if gtest_output.startswith('xml'):
         # Have each shard write an XML file and them merge them all.
         tempdir = tempfile.mkdtemp(prefix='run_test_cases')
-        cmd.append('--gtest_output=xml:' + tempdir)
+        # The real google-test requires a trailing os.path.sep when a directory
+        # is used.
+        cmd.append('--gtest_output=xml:' + tempdir + os.path.sep)
         # Figure out the result filepath in case we can't parse it, it'd be
         # annoying to error out after running the tests.
         if gtest_output == 'xml':
           gtest_output = os.path.join(cwd, 'test_detail.xml')
         else:
           match = re.match(r'xml\:(.+)', gtest_output)
           if not match:
             print >> sys.stderr, 'Can\'t parse --gtest_output=%s' % gtest_output
             return 1
           gtest_output = os.path.join(cwd, match.group(1))
@@ skipping 48 matching lines @@
       if result:
         base_path = os.path.dirname(gtest_output)
         if base_path and not os.path.isdir(base_path):
           os.makedirs(base_path)
         if os.path.isdir(gtest_output):
           # Includes compatibility with with google-test when a directory is
           # specified.
           # TODO(maruel): It would automatically add 0, 1, 2 when a previous
           # one exists.
           gtest_output = os.path.join(gtest_output, 'test_detail.xml')
-        print('Saving gtest compatible XML file to: %s' % gtest_output)
+        sys.stdout.write(
+          '\nSaving gtest compatible XML file to: %s\n' % gtest_output)
         with open(gtest_output, 'w') as f:
           result.writexml(f)
       else:
         logging.error('Didn\'t find any XML file to write to %s' % gtest_output)
   finally:
     if tempdir:
       shutil.rmtree(tempdir)
 
   cleaned = {}
   for item in results:
@@ skipping 322 matching lines @@
       options.run_all,
       options.max_failures,
       options.no_cr,
       options.gtest_output,
       result_file,
       options.verbose)
 
 
 if __name__ == '__main__':
   sys.exit(main(sys.argv[1:]))